Workers of the Revolution: It's time to ride the People's Subway!

The dixia tielu (known by the locals as the dittie), means the underground iron road. A similar definition, hiro den, or "iron road", exists in
Japan. The term qinggui denotes light rail, while the term kuaigui refers to a higher speed rail, i.e. an interurban, but not a subway.

Official policy states that only one transit system is allowed per city, but they can have as many lines as they wish. Cities trying to build more than one are forced to abortl the project. Things are rapidly changing in the home of the People's Subway, as cities build hundreds of kilometers of fresh new subways, light rails, monorails, and monosubways. Presently there are 11 Chinese cities with subways, but look out: there are
more applicants clamoring to build their own collective, happy system.  It is expected that by 2020, China will have metros in 50 cities stretching 6,000 km! As for the imperialist tramways, many still exist today.

Of particular noble mention for those researching Chinese metros is Tracking China.
For general, non-subway-specific information, be sure to check out Railways of China.

Metros are also planned for Changzhou Metro • Datong Metro • Dongguan Metro • Fuzhou Metro • Guiyang Metro • Hefei Subway • Jiaxing Metro • Jinan Metro • Lanzhou Metro • Nanning Metro • Quanzhou Metro • Shijiazhuang Metro • Taiyuan Metro • Ürümqi Metro • Xiamen Metro • Xuzhou Metro • Macau LRT*. A list of Chinese metro cities on Wikipedia, the ultimately reliable source for metros, can be found here.

And deserving honorable mention is the planned 3D bus, a monstrous bus designed to drive over cars, which resembles a massive road subway.

Brief China Radio International feature about
trams in China.
China Metro home page - metro news throughout the Middle Kingdom
Urban railways of China
Xiangtan Electric Manufacturing Group
Subways Future - a site dedicated to systems in China, Korea and Japan

And remember, if you don't have the ability or good fortune of being able to visit China, a ride on New York City's 7 train is the next best thing.